HP StorageWorks Clustered File System 3.1.1p1 Linux Edition Upgrade Guide (February 2006)

Chapter 3: Rolling Upgrade Procedure 10
14. Install the CFS-Linux 3.1.1p1 update 1 rpm.
# rpm -Uhv pmxs-patch-3.1.1p1-0001 .x86_64.rpm
15. Start HP Clustered File System on the upgraded server. Run the
following command:
# /etc/init.d/pmxs start
16. Correct the permissions on the snap.conf and sssu files for EVA
snapshots. From the location where you uncompressed the upgrade
package, run fix_eva_snapshots.sh.
17. Repeat this procedure on each server in the cluster.
The upgrade is now complete.
Unmount Filesystems on Clusters With HP
Clustered Gateway
When unmounting filesystems, you should be aware of the following
problem, which is also documented in the release notes as defect 10742.
Before a PSFS filesystem can be unmounted, all processes must release
their references on the filesystem. The NFS server process retains these
references on exported filesystems, and prevents the filesystem from
being unmounted.
To work around this problem, you will need to take the following steps to
unmount a PSFS filesystem that is being exported from an Export Group.
(This procedure does not impact other Export Groups exporting different
filesystems via the same server.)
1. Disable the Export Groups that are exporting the filesystem to be
unmounted. You will need to disable the Export Groups on each
server from which the filesystem is to be unmounted.
2. Run the command exportfs -ua on each server where the filesystem
will be unmounted.
3. Unmount the filesystem from the servers. If you see a “device busy”
message, run the exportfs -ua command again and then repeat the
unmount operation.